73837573 has 2 divisors, whose sum is σ = 73837574. Its totient is φ = 73837572.

The previous prime is 73837559. The next prime is 73837583. The reversal of 73837573 is 37573837.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72709729 + 1127844 = 8527^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 73837573 - 2¹³ = 73829381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73837583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36918786 + 36918787.

It is an arithmetic number, because the mean of its divisors is an integer number (36918787).

Almost surely, 2^73837573 is an apocalyptic number.

It is an amenable number.

73837573 is a deficient number, since it is larger than the sum of its proper divisors (1).

73837573 is an equidigital number, since it uses as much as digits as its factorization.

73837573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 43.

The square root of 73837573 is about 8592.8792031542. The cubic root of 73837573 is about 419.5262477521.

The spelling of 73837573 in words is "seventy-three million, eight hundred thirty-seven thousand, five hundred seventy-three".